SELECT least_squares_polynom_array((SELECT MODX6((SELECT MODX5(ARRAY(Select gh_x from test_table), (SELECT count(*) FROM test_table), 0.997, 17.084, 1)), (SELECT count(*) FROM test_table), 328, 0, 0)), ARRAY(Select gh_y from test_table), (SELECT count(*) FROM test_table), 2)
